Island



m P; L.. LEWIS.

'GUTTING OFF MACHINE FOR JBWELBR-S STOCK. No. 402,171. Patented A nso,.1889.

WITNEEEEE- IN TIJR.

UNITED STATES PATENT OFFICE.

FRANK L. LEWVIS, OF PROVIDENCE, RHODE. ISLAND.

CUTTING-OFF MACHINE:

FOR JEWELERS STOCK.

SPECIFICATION forming part of Letters Patent No. 402,171, dated April30, 1889.

Application filed January 10,18 89.

To all whom it may concern:

Be it known that I, FRANK L. LEWIs, a citizen of the United States,residing at Providence, in the county of Providence and State of RhodeIsland, have invented certain new and useful Improvements in Cutting-OffMachines for Jewelers, &c.; and I do hereby declare the following to bea full, clear, and exact description of the invention, such as willenable others skilled in the 'art to which it appertains to make and usethe same, reference being had to the accompanying drawings, and toletters or figures of reference marked thereon, which form a part ofthis specification.

My invention relates to machines for transversely cutting or severingjewelers stock or wire into suitable lengths. Usually heretofore it hasbeen the practice to providea suitably-mounted spindle or arbor with acuttingoff saw or disk adapted to be rapidly re-v volved, combined witha movable rest provided with an adjustable stop, therebyfurnishing meanswhereby the blanks may be cut off from the rod or wire and to anydesired length. Such former arrangements, however, are objectionablefrom the fact that the blanks were cut singly, whereas it is verydesirable that a series of them be cut at once, thereby not onlyincreasing the capacity of the machine, but obviouslyeffectingconsiderable saving of time. Take, for example, the studs or posts whichenter into the construction of collar-buttons, 850.. These areusuallymade of round plated wire, (solid or hollow, as the case may be.)It is very essential that such blank studs be very uniform in lengthvand that the ends be cut offtrue and smooth in order to avoid filing,&c., so that when they are placed in position upon the button-back to besoldered they will stand true and vertical after the parts are thusunited.

My invention consists in providing an arbor with a series of two or morecircular saws separated from each other by collars whose thickness isthe same as the length of the blanks to be produced, combined with arest or table adapted to support the wire and present it simultaneouslyto the cutting-disks and a stop or gage adjustably secured to the rest.7

It also consists in providing the machlne with a series of stationaryclearer fingers 0r Serial Nb. 295,918. (No model.)

guards, the ends of which are inserted be the saws, new blanks beingconstantly accu-= mulating and wedging themselves therein to the injuryof the saws. In such event the thin saws frequently become forced to oneside, thereby, if the stock be continually fed along, producing blanksirregular in length and having slightly-beveled ends. Another advantageof the clearer is that it prevents the blanks from being throwntangentially from the saws and scattered about the room, all as will bemore fully hereinafter set forth and claimed.

In the annexed sheet of drawings, Figure 1 represents a front elevationof a small sawing-machineprovided with my improvements. Fig. 2 is atransverse sectional view taken on line a: a: of Fig. 1. Fig. '3 is aplan view, and Fig. 4 is a front view of the clearenguard detached.

A detailed. description of my improved cut= ting-off machine is asfollows:

A designates the machine as a whole.

a is the bed or frame to which the several parts are mounted andattached.

11 indicates the saw arbor or spindle, the

same being mounted to revolve in a bearing, 0, of the frame. To thearbor is secured a pulley, e, which in turn is adapted to be revolved bya belt leading thereto from a suitable driving-pulley, as usual. Theopposite end'portion of the arbor, as drawn, is adapted to receive aseries of circular saws or cuttingdisks, 3. The saws are placed atintervals upon the arbor, intermediate collars, a, of the desiredthickness serving to accurately separate the saws from each other. Anut, 02, fitted to the screw-threaded end of the. arbor in conjunctionwith the outside collar, affords means for firmly securing the saws uponthe arbor.

. To the front side of the bed is attached a support or bracket, 71.,upon which a rest or ably secured to one side of the bracket 71.

This gage is so mounted and adjusted with relation to the first saw(nearest the pulley) that the first blank to be severed will haveexactly the same length as the other simultaneously-severed blanks.

m designates the clearer, which forms another part of my invention. Theclearer is made of suitable metal and attached to the frame a by boltspassing through the clearerbase 111., as clearly shown. The clearer orguard is provided with a series of spring-fingers, 2', adapted to bearlightly against the said spacing-collars u, as shown in Fig. 2. By meansof this device it will be seen that as the wire or stock w is fedforward to the revolving saws or cutters the wire is severedsimultaneously into a series of short pieces or blanks, w',which areforced from the saws by the spring fingers or clearer i in case theblanks do not fall freely from the table f and drop into a receptacle,1), beneath. The pan may be removed through an opening, 19, formed inthe bed a.

I would state that my improvement is well adapted to be employed whenother forms of stock are to be cut into lengths-as, for example, drawnwire, plated or otherwise, solid or tubular, round, angular, orpolygonal in crosssection, or even ribbon or fiat stock may be asreadily cut simultaneously into lengths.

It is obvious that the saws and collars may be so arranged upon thearbor as to simultaneously cut off two or more series of blanks havingdifferent lengths, and by the introduction of thin stationary partitionsthe blanks thus cut may be deposited in the respective receptacles orcompartments without being intermixed.

I do not claim as my invention a series of saws mounted upon an arbor organg-saws adapted to simultaneously cut stock into shorter lengths.

I claim as my invention- 1. The combination, with a series of suitably-mounted cutting-off saws, s, of stationary guards or clearers 1',arranged to intercept the severed blanks, substantially as shown anddescribed, and for the purpose set forth.

2. The combination ,with a series of mounted cutting-off saws, s, of aseries of stationary guards or clearers, 17, arranged to intercept thesevered blanks, and a sliding table provided with a stop-gage,substantially as shown and described.

In testimony whereof I have affixed my signature in presence of twowitnesses.

FRANK L. LEVIS.

Witnesses:

CHARLES I'IANNIGAN, GEO. H. REMINGTON.

